a tertiary component that embodies the familiar in some way: for example, wolf bones are needed to summon a spirit wolf

Note that pouches that use Elder charms don't use spirit shards, but Elder energy instead.

The High Level Alchemy value is directly related to the number of shards: $ H = 15S + 254 $

The Bogrog shard swap column shows the cost of the shards swapped for comparison with Hi-alch or GE Price; it is usually better to Hi-alch or sell on GE with lower amounts of shard except for some of the higher levels where a player can save money by swapping with Bogrog. Players can swap pouches with Bogrog at a set percentage of the shards used to create the pouch in the first place. See the article on Bogrog for more information. The number of shards swapped is 70% of the number used in creation. The value is 25 coins per shard saved by swapping with Bogrog instead of buying new shards.